3. The discussion whether and how predicate calculus should be implemented as a deep structure in question-answering programs. a) Please discuss about TWO(2) several possible ways of using predicate calculus, and argues that predicate calculus has significant advantages above competing deep structures if the way of using it is carefully selected. b) Based on your answer a), please depict on how various predicate calculus can be encoded in a consistent way, and explain how axiom sets that define these encodings can be written and debugged. 3. The discussion whether and how predicate calculus should be implemented as a deep structure in question-answering programs. a) Please discuss about TWO(2) several possible ways of using predicate calculus, and argues that predicate calculus has significant advantages above competing deep structures if the way of using it is carefully selected. b) Based on your answer a), please depict on how various predicate calculus can be encoded in a consistent way, and explain how axiom sets that define these encodings can be written and debugged